To celebrate this performance at the Ether Festival on April 20, pioneering-pianist Hauschka aka Volker Bertelmann has recorded one of the finest videos - thanks to director Andreas Huth - yet to showcase exactly how his 'prepared piano' thingamy works.

DiS has an exclusive performance of 'Eltern' here. Watch and enjoy Hauschka and Huth's brilliant collaboration.

Looks like dear Volker has a bit of a sweet tooth, but like most Germans, he's been industrious and efficient, managing never to throw away any of the cellophane wrappers. A fine musical and ecological achievement indeed.